MRK vs NEOG vs PAHC Stock Comparison

Merck, Neogen and Phibro Animal Health Prices as of Oct 29, 2026 Peers: Industry group
MRK Merck & Co., Inc.
$146.34 -2.0% 1M +69.0% 1Y
Market cap
$370.60B
P/E
151.1x
Revenue (TTM)
$67.38B
Div. yield
–
Pharmaceuticals Healthcare
2 wins
NEOG Neogen Corp
$12.26 -3.7% 1M +96.8% 1Y
Market cap
$2.56B
P/E
–
Revenue (TTM)
$883.99M
Div. yield
–
Diagnostic Equipment Healthcare
1 win

Head to Head

11 decided of 12

Phibro Animal Health leads on 8 of the 12 questions below (Phibro Animal Health 8, Merck 2, Neogen 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionMRKNEOGPAHCLeader
Larger companyMarket capitalisation $370.60B $2.56B $1.57B MRK
Cheaper on earningsLower P/E, profitable companies only 151.1x -45.6x 15.8x PAHC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 59.0x 38.3x 11.4x PAHC
Faster revenue growthRevenue growth, trailing twelve months +4.9% -0.3% +17.1% PAHC
More profitableNet margin, trailing twelve months — -6.3% 6.6% PAHC
Better return on capitalReturn on invested capital — -0.2% 14.2% PAHC
Less leveragedLower net debt / EBITDA — 5.4x 2.1x PAHC
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.01% –
Better 1-year returnPrice return, last 12 months +69.0% +96.8% -5.7% NEOG
Better 5-year returnAnnualised price return, 5 years +10.7%/yr -22.0%/yr +12.1%/yr PAHC
Less volatileAnnualised volatility, 1 year 29.8% 55.7% 55.6% MRK
Higher overall scoreMean of the five percentile scores vs peers 61/100 57/100 68/100 PAHC

Percentile Scorecard

MRKNEOGPAHC

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisMRKNEOGPAHC
Valuation 91 #60 of 624 73 #62 of 227 92 #51 of 624
Growth 21 #478 of 601 49 #111 of 218 85 #89 of 601
Profitability – 63 #76 of 202 85 #81 of 541
Financial Health – 47 #125 of 233 26 #481 of 647
Shareholder Returns 71 #104 of 359 55 #59 of 130 53 #169 of 359
Overall 61 57 68
  • MRK ranked among 671 companies in Pharmaceuticals and Biotechnology
  • NEOG ranked among 247 companies in Medical Devices and Diagnostics
  • PAHC ranked among 671 companies in Pharmaceuticals and Biotechnology

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodMRKNEOGPAHCSPY
1 month -2.0%-3.7%+9.6% +0.7%
3 months +12.8%+6.3%+6.6% +3.7%
6 months +34.0%+30.4%-26.9% +7.1%
Year to date +39.0%+75.4%+4.0% +12.8%
1 year +69.0%+96.8%-5.7% +11.9%
3 years +42.5%-18.6%+255.2% +85.2%
3 years, per year +12.5%-6.6%+52.6% +22.8%
5 years +66.2%-71.0%+77.1% +67.6%
5 years, per year +10.7%-22.0%+12.1% +10.9%
10 years +148.7%-37.3%+49.2% +262.0%
10 years, per year +9.5%-4.6%+4.1% +13.7%

Risk

MeasureMRKNEOGPAHCSPY
Volatility, 1Y 29.8%55.7%55.6% 12.7%
Downside volatility, 1Y 24.6%46.7%60.0% 12.6%
Beta vs S&P 500, 1Y 0.111.440.74 1.00
Return / volatility, 1Y 2.321.74-0.10 0.94
Max drawdown, 5Y -44.7%-90.6%-57.9% -25.4%
From 52-week high -6.5%-12.3%-34.8% -1.2%
52-week high $156.45$13.98$59.58 $779.14
52-week low $82.49$5.41$28.52 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleMRKNEOGPAHC
P/E now vs peer median 147.4xmedian 17.8x -47.7xmedian 28.7x 15.8xmedian 17.8x
P/S now vs peer median 5.4xmedian 9.1x 3.0xmedian 3.0x 1.0xmedian 9.1x
EV/EBITDA now vs peer median —median 15.0x 29.6xmedian 17.8x 8.3xmedian 15.0x
P/FCF now vs peer median 22.9xmedian 21.7x 53.7xmedian 26.4x 159.7xmedian 21.7x
P/B now vs peer median —median 2.2x 1.3xmedian 2.4x 4.1xmedian 2.2x
PEG now vs peer median -8.13median 0.35 1.70median 0.99 0.35median 0.35

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsMRKNEOGPAHC
Revenue $67.38B $883.99M $1.52B
Gross profit – $418.98M $512.52M
Operating income – -$7.38M $194.40M
Net income – -$56.10M $99.72M
Free cash flow – $49.80M $9.87M
R&D $30.76B $19.76M –
EPS (diluted) $0.99 $-0.26 $2.43
Cash & equivalents – $172.00M $61.42M
Total debt – $774.20M $2.49B
Shares (diluted) 2.47B 218.10M 40.96M
Enterprise value $370.60B $1.89B $1.25B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricMRKNEOGPAHC
P/E 147.4x -47.7x 15.8x
P/FCF 22.9x 53.7x 159.7x
P/Operating cash flow – 31.4x 22.9x
P/S 5.4x 3.0x 1.0x
P/B – 1.3x 4.1x
P/Tangible book – 3.4x 4.4x
EV/EBITDA – 29.6x 8.3x
EV/EBIT – -444.4x 10.9x
EV/Revenue 5.4x 3.7x 1.4x
EV/FCF – 65.8x 213.9x
EV/Operating cash flow – 38.4x 30.6x
PEG (3Y EPS CAGR) -8.13 1.70 0.35

Growth

14 metrics
MetricMRKNEOGPAHC
Revenue growth (1Y) 4.9% -0.3% 17.1%
Revenue CAGR (3Y) 4.3% -1.3% 15.8%
Gross profit growth (1Y) – 1.8% 28.1%
Gross profit CAGR (3Y) – -3.1% 19.8%
Operating income growth (1Y) – 99.3% 76.0%
Operating income CAGR (3Y) – -29.0% 39.3%
Net income growth (1Y) – 94.6% 106.6%
Net income CAGR (3Y) – -28.3% 45.2%
EPS growth (1Y) -87.0% 94.6% 105.2%
EPS CAGR (3Y) -18.1% -28.0% 44.6%
Operating cash flow growth (1Y) – -1.9% -13.9%
Operating cash flow CAGR (3Y) – 2.9% 73.0%
Free cash flow growth (1Y) – 1,631% -76.4%
Free cash flow CAGR (3Y) – 126.1% 31.2%

Profitability

14 metrics
MetricMRKNEOGPAHC
Gross margin – 47.4% 33.8%
EBITDA margin – 12.5% 16.8%
Operating margin – -0.8% 12.8%
Pretax margin – -7.7% 9.0%
Net margin – -6.3% 6.6%
FCF margin – 5.6% 0.6%
Operating cash flow margin – 9.6% 4.5%
Return on equity – -2.7% 26.7%
Return on assets – -1.7% 6.8%
Return on invested capital – -0.2% 14.2%
Return on capital employed – -0.2% 16.8%
Asset turnover – 0.3x 1.0x
Cash conversion (OCF / net income) – -1.5x 0.7x
Stock comp / revenue – 1.3% 0.1%

Financial Health

11 metrics
MetricMRKNEOGPAHC
Debt / assets – 23.4% 41.1%
Debt / equity – 0.4x 1.6x
Net debt / EBITDA – 5.4x 2.1x
Debt / FCF – 15.5x 62.5x
Liabilities / assets – 36.8% 74.3%
Equity / assets – 63.2% 25.7%
Interest coverage – – 4.2x
Current ratio – 3.9x 3.0x
Quick ratio – 2.1x 1.1x
Cash ratio – 1.2x 0.3x
Altman Z-score – 1.50 3.11

Shareholder Returns

7 metrics
MetricMRKNEOGPAHC
Dividend yield 2.3% – 1.2%
Net buyback yield – -0.1% –
Shareholder yield 2.3% -0.1% 1.2%
Payout ratio (earnings) – – 19.5%
Payout ratio (FCF) – – 197.3%
Dividend growth (1Y) – – 0.1%
Dividend CAGR (3Y) – – 0.0%

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusMRKNEOGPAHC
Forward P/E 59.0xFY2026 38.3xFY2026 11.4xFY2027
EPS, next fiscal year $2.48FY2026 $0.32FY2026 $3.42FY2027
EPS growth, next FY -72.4%FY2026 0.0%FY2026 +6.2%FY2027
EPS growth, the year after +257.3% +31.3% +9.6%
Revenue, next fiscal year $69.45BFY2026 $847.28MFY2026 $1.53BFY2027
Revenue growth, next FY +6.8%FY2026 -2.7%FY2026 +0.6%FY2027
Revenue growth, the year after -3.8% -1.5% -0.2%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersMRKNEOGPAHC
Held by institutions 79.9% 100.0% 51.5%
Institutions holding 3,798 315 209
Change in shares held, QoQ +2.6% +1.6% +3.0%
Institutions buying 1,843 151 117
Institutions selling 1,465 106 74
Buyers to sellers 1.26 1.42 1.58

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

MRKNEOGPAHC
MRK 1.00 0.15 0.22
NEOG 0.15 1.00 0.21
PAHC 0.22 0.21 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, MRK, NEOG and PAHC?

Merck (MRK) is the largest by market capitalisation: Merck (MRK) $370.60B, Neogen (NEOG) $2.56B, Phibro Animal Health (PAHC) $1.57B.

Which stock is cheaper, MRK, NEOG and PAHC?

Phibro Animal Health (PAHC) trades on the lowest price-to-earnings ratio (Merck (MRK) 151.1x, Neogen (NEOG) -45.6x, Phibro Animal Health (PAHC) 15.8x). On next year's consensus earnings, Phibro Animal Health (PAHC) is cheapest (Merck (MRK) 59.0x, Neogen (NEOG) 38.3x, Phibro Animal Health (PAHC) 11.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Phibro Animal Health (PAHC) grew revenue fastest over the trailing twelve months: Merck (MRK) +4.9%, Neogen (NEOG) -0.3%, Phibro Animal Health (PAHC) +17.1%.

Which company is more profitable?

Phibro Animal Health (PAHC) has the highest net margin (Neogen (NEOG) -6.3%, Phibro Animal Health (PAHC) 6.6%). On return on invested capital, Phibro Animal Health (PAHC) leads (Neogen (NEOG) -0.2%, Phibro Animal Health (PAHC) 14.2%).

Which stock has performed better?

Over the past year Neogen (NEOG) returned the most: Merck (MRK) +69.0%, Neogen (NEOG) +96.8%, Phibro Animal Health (PAHC) -5.7%. Over five years, Phibro Animal Health (PAHC) compounded fastest (Merck (MRK) +10.7%/yr, Neogen (NEOG) -22.0%/yr, Phibro Animal Health (PAHC) +12.1%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Merck (MRK) 0.00%, Neogen (NEOG) 0.00%, Phibro Animal Health (PAHC) 0.01%. Merck (MRK) and Neogen (NEOG) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Merck (MRK) has been the steadiest (Merck (MRK) 29.8%, Neogen (NEOG) 55.7%, Phibro Animal Health (PAHC) 55.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, MRK, NEOG and PAHC?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Phibro Animal Health (PAHC) leads on 8. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.